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#reading-9-probability-concepts

The **expected value** of a random variable is its probability-weighted average of the possible outcomes. When combined with probability, the expected value simply factors in the relative chances of each event occurring, in order to determine the overall result. The more probable outcomes will have a greater weighting in the overall calculation.

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**Subject 6. Expected Value, Variance, and Standard Deviation of a Random Variable**

The expected value of a random variable is its probability-weighted average of the possible outcomes. When combined with probability, the expected value simply factors in the relative chances of each event occurring, in order to determine the overall result. The more probable outcomes will have a greater weighting in the overall calculation. For a random variable X, the expected value of X is denoted E(X). E(X) = P(x 1 ) x 1 + P(x 2 ) x 2 + ... + P(x n ) x n In investme

The expected value of a random variable is its probability-weighted average of the possible outcomes. When combined with probability, the expected value simply factors in the relative chances of each event occurring, in order to determine the overall result. The more probable outcomes will have a greater weighting in the overall calculation. For a random variable X, the expected value of X is denoted E(X). E(X) = P(x 1 ) x 1 + P(x 2 ) x 2 + ... + P(x n ) x n In investme

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